Index: head/x11-toolkits/libhandy/Makefile
===================================================================
--- head/x11-toolkits/libhandy/Makefile	(revision 500560)
+++ head/x11-toolkits/libhandy/Makefile	(revision 500561)
@@ -1,27 +1,27 @@
 # $FreeBSD$
 
 PORTNAME=	libhandy
 PORTVERSION=	0.0.9
 CATEGORIES=	x11-toolkits gnome
 DIST_SUBDIR=	gnome
 
 MAINTAINER=	gnome@FreeBSD.org
 COMMENT=	Library with GTK+ widgets for mobile phones
 
 LICENSE=	LGPL21
 
 BUILD_DEPENDS=	valac:lang/vala
 LIB_DEPENDS=	libgladeui-2.so:devel/glade
 
-USES=		gettext gnome meson pkgconfig
+USES=		compiler:c11 gettext gnome meson pkgconfig
 USE_GNOME=	cairo gtk30 introspection:build
 
 USE_LDCONFIG=	yes
 MESON_ARGS=	-Dtests=false
 
 USE_GITLAB=	yes
 GL_SITE=	https://source.puri.sm/
 GL_ACCOUNT=	Librem5
 GL_COMMIT=	56b0aa62f6251ee19a88fc208b7ca8dcf9c9633c
 
 .include <bsd.port.mk>